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FAQ within [ FREQROL-A100 ]

1-10 of Total 21

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  • Compatibility of plug-in option

    Use the plug-in option dedicated for the FR-A100EXCELLENT. To avoid an incorrect installation, the connector position for the plug-in option and the FR-A100E... More Details >>

    • No：21632
    • Release Date：2018/08/22 16:28

  • Inverter input current

    Since the input current has a distorted waveform and the waveform ratio is low, the total inverter input power factor is very poor depending on the power sup... More Details >>

    • No：21440
    • Release Date：2018/08/22 16:27

  • Replacement of parts

    In general, 1. The user cannot check the part for decision. 2. The user cannot replace the part as well. However, the user can replace the cooling fan if he ... More Details >>

    • No：21482
    • Release Date：2018/08/22 16:27

  • Inverter loss

    The inverter efficiency changes depending on the inverter output frequency, carrier frequency, motor capacity, and load factor. When the inverter and motor h... More Details >>

    • No：21511
    • Release Date：2018/08/22 16:28

  • New function of EXCELLENT

    The new function includes:- PI control function- Cumulative energy monitor (monitor accuracy: approximately ±25% of full scale value)- Response current limit... More Details >>

    • No：21660
    • Release Date：2018/08/22 16:28

  • Energy saving effect of inverter operation

    Energy saving operation of the inverter is represented by comparison with commercial power supply operation. 　For example, to control air volume of an air co... More Details >>

    • No：21622
    • Release Date：2018/08/22 16:28

  • What happens if reset occurs during operation?

    This is because when the inverter restarts while the motor is coasting, an overcurrent trip can occur during the restart process. However, the recent types o... More Details >>

    • No：21477
    • Release Date：2018/08/22 16:27

  • Surge voltage of 400 V inverter

    No. Although the carrier frequency increases or decreases the switching count, the switching speed is the OFF-to-ON speed of the IGBT element of the inverter... More Details >>

    • No：21401
    • Release Date：2018/08/22 16:27

  • Cause of overcurrent (OC2) at constant speed

    First of all, capacity reduction of the main circuit electrolytic capacitor is probable. Usually, the electrolytic capacitor is replaced every 5 years on ave... More Details >>

    • No：21407
    • Release Date：2018/08/22 16:27

  • Surge voltage of 400 V motor

    When the wire between the 400 V inverter and motor is long (20 m or longer), surge voltage occurs momentarily. This voltage is as two or more times as the DC... More Details >>

    • No：21404
    • Release Date：2018/08/22 16:27

1-10 of Total 21

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